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PDF TB67S289FTG Data sheet ( Hoja de datos )
| Número de pieza | TB67S289FTG | |
| Descripción | Active Gain Control Clock-in controlled Bipolar stepping motor driver | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Preliminary
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB67S289FTG
TB67S289FTG
Active Gain Control Clock-in controlled Bipolar stepping motor driver
The TB67S289FTG is a clock-in controlled bipolar stepping
motor driver with a built-in Active Gain Control architecture.
The TB67S289FTG also has an internal current feedback
control (ACDS) which enables the driver to control the
motor current without using a sense resistor.
Using the BiCD process, the TB67S289FTG is rated at
50 V, 3.0 A.
P-WQFN48-0707-0.50-003
Weight 0.14 g (typ.)
Features
Built-in Anti-stall architecture (AGC: Active Gain Control)
Built-in sense resistor less current control architecture(ACDS: Advanced Current Detection System)
Low Rds(on) MOSFET(High side+ Low side=0.46 Ω(typ.))
Built-in micro stepping control. (Full, Half, Quarter, 1/8, 1/16, 1/32 step resolution)
Multi error detect functions(Thermal shutdown(TSD), Over current(ISD), Power-on-reset(POR), motor
load open(OPD)).
Error detection status output (Error Output)
Internal VCC (5 V) regulator enables the driver to operate with a single power supply.
Adjustable constant current PWM frequency using external components.
Small package with thermal pad. (QFN48: 7.0 mm x 7.0 mm)
Note: Please consider the heat condition when using the TB67S289FTG.
Do not design your products or systems based on the information on this document. Please contact your Toshiba
sales representative for updated information before designing your products.
©2017 TOSHIBA Corporation
1
2017-03-14
1 page  
Preliminary
◆Basic function of stepping motor control
TB67S289FTG
1. CLK function
Each up-edge of the CLK signal will shift the current step and electical angle of the motor.
*: There is a built-in digital filter of 200 ns(±20%) for CLK pin.
CLK Function
↑ Shifts the electrical angle and current step per each up-edge.
↓ - (no change)
2. ENABLE function
The ENABLE pin controls the ON and OFF of the motor outputs. Please set the ENABLE pin to ‘Low’ during VM power-on
and power-off sequence to avoid any motor opearation, when VM voltage is below the operation range.
ENABLE
Function
High
Low
Motor outputs: ON (Normal operation)
Motor outputs: OFF (High impedance)
3. CW/CCW function
The CW/CCW pin controls the rotation direction of the motor. When set to ‘CW=Clockwise’, the current of OUTA leads the
current of OUTB by a 90 degrees phase difference. When set to ‘CCW=Counter clockwise’, the current of OUTB leads the
current of OUTA by a 90 degrees phase difference. Also, when set to ‘CW’, the OUT(+) pin voltage will show high level at
each start of the Charge sequence, and OUT(-) pin voltage will show High level when set to ‘CCW’
CW/CCW
Function
High (CW)
Low (CCW)
Clock-wise: The current of Ach will lead the current of Bch by 90 degrees phase difference.
Counter clock-wise: The current of Bch will lead the current of Ach by 90 degrees phase
difference.
4. DMODE (Step resolution setting) function
The DMODE is used to set the step resolution for stepping motor operation. If all 3 pins(DMODE0,1,2) is set to Low, the
device will go into ‘standby mode’. During ‘standby mode’, few internal circuits are fully shutdown to reduce power
dissipation. If any of the 3 pins (DMODE0,1,2) is set to High, the TB67S289FTG will reboot from standby mode, but will take
7.5 μs(typ.) to boot up.
*: There is a built-in digital filter of 1.25 μs(±20%) for DMODE pin.
*: There is a built-in digital filter of 0.94 μs(±20%) for standby mode.
DMODE0 DMODE1 DMODE2
Function
High
High
High
High
Low
Low
Low
Low
High
High
Low
Low
High
High
Low
Low
High
Low
High
Low
High
Low
High
Low
1/32 step resolution
1/16 step resolution
1/8 step resolution
1/2(b) step resolution
1/4 step resolution
1/2(a) step resolution
1/1 step resolution
Standby mode (Internal Oscillator and Output MOSFETs are set to ‘OFF’)
DMODE0,1,2 pins can be switched during operation. Please see the application note for function specifics.
5 2017-03-14
5 Page 
Package Dimensions
P-WQFN48-0707-0.50-003
Preliminary
TB67S289FTG
(Unit: mm)
11 2017-03-14
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TB67S289FTG.PDF ] | |
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